I'm awful at drywalling (as you can see) and dont know how to do these corners

I want to fix these inside corners for this remodel I'm doing. Any tips? Should I use tape or those solid (metal? paper?) corner beads? Thanks a ton!

 

Not bad at all have seen a lot worst. Use some inside corner bead. Top left might be only place I see that maybe problem. if that gap isn't over a inch should be ok. Pro's will be later may see something I missed.

 

You will have to get rid of the ceiling texture before you can tape that area. I haven't been able to justify the price of the inside corner tape with embedded metal. Worst case is you work with regular tape and pull it if the results do not meet your satisfaction. Multiple thin coats with ever bigger drywall knives

 

Get yourself an inside corner tool to make it easier. Wal-Board Tools 4 in. x 3.5 in. Inside Corner Tool-82-032 at The Home Depot

 

Personally I don't care for the corner knife ... but maybe I'm too old of a dog to learn new tricks

The main thing with paper tape is to make sure there is joint compound [the glue] under all of the tape, smooth it out with your knife, removing any excess mud. The tape coat must dry before adding more mud! otherwise the weight of the next coat of mud will pull the tape loose.

You might need to prefill the gap next to the ceiling on the left wall.

 

Yeah the gap on the top left looks the worst. I would cut a thin piece of drywall and rasp it as needed so that it fits into that gap. Marksr mentioned "prefill" which is something all finishers will do first before they ever go to tape. They will go around with lightweight setting compound (20 minute easy sand is good to work with) and fill up any gaps that the drywallers left them. This reduces the chances of joints cracking because if fills up any gaps that will be behind the tape. So I would definitely recommend you do that too- it all gets wiped down tight and you should not have to sand any of it. Once it's dry, spread on your regular joint compound and embed your paper tape in it, wiping it down tight as well with a 4" knife (or corner trowel).... with no sanding after it's dry.

 

Thanks a ton guys! Thats a good point I was thinking about but forgot to ask about--whats gonna happen to that ceiling texture? Surely I'm going to lose that texture on the corners.

 

You have several choices; remove texture as needed and then retexture those areas when the taping is done, remove all the texture and either leave the ceiling slick or apply new texture, flat tape the drywall to the ceiling and caulk the crack when done or install crown molding.